HYBRID VEHICLE CONTROL APPARATUS

• US 20140200111A1
• Filed: 10/03/2011
• Published: 07/17/2014
• Est. Priority Date: 10/03/2011
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Murakami, Koji
• Granted Patent: US 9,017,214 B2
• Time in Patent Office: Days
• US Class Current: 477/4
• CPC Class Codes: B60K 6/48 Parallel type
• CPC Class Codes: B60K 6/547 the transmission being a stepped gearing
• CPC Class Codes: B60L 15/2054 by controlling transmissions or clutches
• CPC Class Codes: B60L 2240/423 Torque
• CPC Class Codes: B60L 2240/443 Torque
• CPC Class Codes: B60L 2240/507 Operating parameters
• CPC Class Codes: B60L 2250/26 by pedal actuation
• CPC Class Codes: B60L 2260/26 Transition between different drive modes
• CPC Class Codes: B60L 7/22 Dynamic electric resistor braking, combined with dynamic electric regenerative braking
• CPC Class Codes: B60W 10/02 including control of driveline clutches
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/10 including control of change-speed gearings
• CPC Class Codes: B60W 10/11 Stepped gearings
• CPC Class Codes: B60W 10/113 with two input flow paths, e.g. double clutch transmission selection of one of the torque flow paths by the corresponding input clutch
• CPC Class Codes: B60W 10/18 including control of braking systems
• CPC Class Codes: B60W 10/184 with wheel brakes
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 20/10 Controlling the power contribution of each of the prime movers to meet required power demand
• CPC Class Codes: B60W 20/14 in conjunction with braking regeneration
• CPC Class Codes: B60W 20/30 Control strategies involving selection of transmission gear ratio control of change speed gearings, together with other vehicle sub-units B60W10/10; HEV transmission gearing B60K6/36; gearings and control thereof F16H
• CPC Class Codes: B60W 20/40 : Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers power-up or power-down of the driveline B60W30/192
• CPC Class Codes: B60W 2510/0275 : Clutch torque
• CPC Class Codes: B60W 2510/1005 : Transmission ratio engaged
• CPC Class Codes: B60W 2710/1005 : Transmission ratio engaged
• CPC Class Codes: B60W 30/18127 : Regenerative braking
• CPC Class Codes: B60W 30/19 : Improvement of gear change, e.g. by synchronisation or smoothing gear shift
• CPC Class Codes: F02D 29/02 : peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
• CPC Class Codes: F02N 11/04 : the motors being associated with current generators
• CPC Class Codes: F02N 11/0833 : Vehicle conditions F02N11/0822, F02N11/0825 take precedence
• CPC Class Codes: F02N 11/084 : State of vehicle accessories, e.g. air condition or power steering
• CPC Class Codes: F02N 11/0844 : with means for restarting the engine directly after an engine stop request, e.g. caused by change of driver mind
• CPC Class Codes: F02N 15/022 : the starter comprising an intermediate clutch
• CPC Class Codes: F02N 2300/2006 : using prediction of future conditions
• CPC Class Codes: Y02T 10/40 : Engine management systems
• CPC Class Codes: Y02T 10/62 : Hybrid vehicles
• CPC Class Codes: Y02T 10/64 : Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility
• CPC Class Codes: Y10S 903/93 : Conjoint control of different elements

Abstract

A hybrid vehicle control apparatus (100) is provided with: a first replacement controlling device which replaces regenerative braking torque of the rotating electrical machine by engagement torque of the clutch if probability of starting an internal combustion engine is high on demand of changing a connection state between a rotating electrical machine and a transmission mechanism in regenerative braking by the regenerative braking torque of the rotating electrical machine; and a second replacement controlling device which replaces the regenerative braking torque by friction braking torque if the start probability is low on the change demand.

Claims

1. A hybrid vehicle control apparatus for controlling a hybrid vehicle,

the hybrid vehicle comprising:

an internal combustion engine;

a transmission mechanism having a plurality of shift positions with mutually different gear ratios and capable of changing a transmission gear ratio as a ratio of rotational speeds between an input shaft and an output shaft connected to wheels in accordance with the shift positions;

a clutch capable of cutting off an engine output shaft of the internal combustion engine and the input shaft;

a rotating electrical machine capable of inputting/outputting torque via the input shaft; and

a brake apparatus capable of applying friction braking torque to the wheels,

the hybrid vehicle capable of connecting an output shaft of the rotating electrical machine to a shaft different from the input shaft to which the engine output shaft is connected in the transmission mechanism,

said hybrid vehicle control apparatus comprising;

a first replacement controlling device which replaces regenerative braking torque of the rotating electrical machine by engagement torque of the clutch if probability of starting the internal combustion engine is high on demand of changing a connection state between the rotating electrical machine and the transmission mechanism in regenerative braking by the regenerative braking torque of the rotating electrical machine; and

a second replacement controlling device which replaces the regenerative braking torque by the friction braking torque if the start probability is low on the change demand.

2. The hybrid vehicle control apparatus according to claim 1, further comprising a start controlling device which starts the internal combustion engine by inputting the engagement torque via the clutch from the input shaft to which the engine output shaft is connected in the transmission mechanism to the engine output shaft if a demand to start the internal combustion engine is made during the replacement of the regenerative braking torque by the engagement torque.

3. The hybrid vehicle control apparatus according to claim 1, further comprising:

a change controlling device which changes the connection state on the demand of changing the connection state; and

a start controlling device which starts the internal combustion engine after completion of the connection state change if a demand to start the internal combustion engine is made during the connection state change.

4. The hybrid vehicle control apparatus according to claim 1, further comprising:

a change controlling device which changes the connection state on the demand of changing the connection state; and

a start controlling device which starts the internal combustion engine by inputting the engagement torque via the clutch from the input shaft to which the engine output shaft is connected in the transmission mechanism to the engine output shaft if a demand to start the internal combustion engine is made after completion of the connection state change.